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STOP MECHANISM FOR LOOMS. No. 308,859. Patented Nov. 25, 1884.

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E. HERZIG. STOP MECHANISM FOR LOOMS.

Patented Nov. 25, 1884.

INVENTOR @VITNESSES i I W A W 1! ATTORNEY-SJ UNITED Srarns Farnwr Orricn.

EDUARD HERZIG, OF XVEST HOBOKEN, ASSIGNOR TO ROBERT SIMON AND HERMAN SIMON, OF UNION, NE? JERSEY.

STOP MECHANISM FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 308,359, dated November 25, 1884.

Application filed June 1, 1883. (No model.)

To all whom it may concern:

Be it known that I, EDUARD HERZIG, of WVest Hoboken, in the county of Hudson and State of New Jersey, have invented Improved Stop Mechanism for Looms, of which the following is a specification.

Figure 1 is a partial side view of a loom having my improved stop mechanism applied thereto. Fig. 2 is a front view of the same, on a reduced scale, partly broken away. Fig. 3 is a side view of part of the mechanism, showing it in a different position from that shown in Fig. 1. Fig. 4 is a detail back view, on an enlarged scale, of the ratchet-wheel used I 5 on said mechanism. Fig. 5,is a horizontal section on the line k k, Fig. 3, of the parts F, M, and I, and a top view of other parts that are connected therewith.

The object of this invention 'is to provide looms for weaving wit-h mechanism by which they will be automatically stopped in case the shuttlethread should break or the shuttle run empty, and also in case the shuttle should become clogged in the race.

The invention consists in new combinations of parts, hereinafter more fully described and claimed, whereby the above-mentioned objects are attained.

In the drawings, the letter A represents the batten of the loom, and B is the shuttle placed in its race. The batten A has the usual backand-forward movement imparted to it. At the end of its forward stroke, which is the beating-stroke, the batten will be in the position indicated in Fig. 1 with reference to two levers, O and D, that are also shown in that figure. The lever O, which is pivoted at a to the loom-frame, swings backward on its pivot whenever the batten makes its backward motion, and said lever continues its motion in that direction until it strikes a stop-pin, b, which is secured to the bar L, hereinafter described, and which marks its limit of motion in that direction. WVhen the batten moves forward, it pushes the'lever O by means of a projecting toe, (1, until the position of the lever 0 which is shown in Fig. 1 is attained. The other lever, D, which is pivoted at e to a certain lever, E, is normally in the position '50 shown in Fig. 1 with reference to the batten that is, the batten will, when everything in the loom is in proper order, just come on its forward stroke near to the lever D without affecting its position or movement.

In order to make my invention effective, it 5 5 is necessary that the take-up or feed of the fabric being woven shall be so regulatedas to maintain the fell or cloth-making point of the warps in such position that as the batten comes forward to beat up each weft or shuttle- 6o thread it will be checked by the resistance offered by such weft in just the position shown in Fig. 1 with reference to the two levers D and O, which are placed at the side of the loom-frame F. For it is the main and con trolling feature of my invention that when the batten is driven too far forward, as it will be when not resisted by the presence of a properly-laid weft-thread, the batten being operated as in Patent No. 286,081, it will, striking 0 the lever D, push the same in the direction of the arrow 1, Fig. 1, and thereby cause the stop-motion to become effective, as hereinafter more fully described, and likewise, if the batten is not driven far enough forward, it will fail to bring the lever O to the position shown in Fig. 1, or, in other words, as far away from the stop-pin b as is necessary for the normal action of the loom, and thereby cause the movement of the loom to be arrested by the means hereinafter described. These contingencies will happen, the firstwhen the shuttle fails to deposit any thread in the shed, so that the batten will be caused to follow forward to the thread already battened home by a previous stroke and afterthe finished fabric has been advanced by the taking-up movement, and the second when the shuttle itself clogs the shed and prevents the batten coming'home as far as it ought to, thereby preventing it from reaching the lever O, or at least pushing it as far forward as desired. In the lower part of the loom-frame is hung a shaft, G, which is continuously rotated by suitable mechanism,

as hereinafter described, and which carries an 5 eccentric or cam, f, which is directly below the lever E. The lever E, being pivoted at g, oscillates around its pivot under the influence of the rotating cam or eccentric f, and pushes the lever D up and down with it. Bya link, 10o

h, the lever E is connected to another lever, H, which is pivoted to afixed pin, 2', and which, as the lever E oscillates on its pivot g, in turn also oscillates on its pivot 11. The lever H carries a pawl,j, which in the position shown in Fig. 1 rests on the edge of a ratchet-wheel, I. Into the teeth of this ratchet-wheel engages also a spring-pressed retaining-pawl, Z. l is the spring which presses the pawl Z. At the back of the ratchet-wheel I is attached thereto, as more clearly shown in Figs. 4 and 5, but as also indicated by dotted linesin Figs. 1 and 8, aproj ecting pi n, m. \Vith the ratchetwheel is connected a spring, 12, which is also connected with the pin 1', and tends to hold the pin m in about the position indicated in Fig. 1. XVhen, under the oscillating motion of the lever H, the pawl j turns the ratchet-wheel I in the direction of the arrow 2, Fig. 1, this spring n will be wound up, thereby receiving a tendency to throw the ratchet-wheel and its stop an, so soon as the pawl j is lifted, back into the position shown in Fig. 1. On the pin tis also hung a bar, J, which has two projecting arms, 0 and p. The arm 0 is above the springpressed retaining-pawl Z, and the arm 1) below the pawl j, as shown. WVith the arm 1) is connected a rod, 1", which connects in turn at its upper portion to the bar L, which is pivoted at the point .9 to the loom-frame, and which carries at its sideastaple or equivalent eye, t, through which the upper part of the lever D extends. Directly below the rear cross-bar of this staple said lever D has a shoulder, a, or an equivalent projection. To the pin 5 is also loosely hung a block, M, to which is pivoted at o a lever, N, that reaches with its forward arm under the shipper-bar O. The 10-- ver N is made of two parts that are connected by a bolt, it, one of the parts being slotted where said bolt it passes through it. This renders the lever N extensible, and, as its free end is curved, tends to regulate the effect it has on the bar 0. WVith the lever N is also connected a rod, 1?, which is pivoted at w to the frame of the loom, as shown, and which has aspring-click, w, or pivoted spring-pressed blade, of the form shown in Fig. 1, at its lower portion. A spring, 3 seeks to draw the bar P into the position shownin Fig. 1. This spring y is by preference attached to a slotted plate, 2, which is adjustably fastened to the frame of the loom, so that by raising or lowering it the tension of the spring 3/ can be regulated. This sliding plate 2 can also serve to constitute a stop for.the pin m to prevent the spring n in uncoiling from throwing the ratchet-wheel around too far, for the stop at can strike the plate 2 when the wheel I is moved under the influence of the spring a, and thereby prevent the wheel I running around too far. Normally the block M will rest against an adjustable or fixed stop, a as shown in Fig. 1. The shipper-bar O, which is nore clearly indicated in Fig. 2, is a notched lar of the ordinary kind, passing through lots b in the frame F of the 100m, and resting, when the loom is in motion, with its notched part in said slot, as shown in Fig. 2; but when the bar 0 is raised so as to clearits notch a spring, I), or weight will draw it in the direction of the arrow 3 in Fig. 2, and cause it to unlock the clutch A or otherwise move the usual mechanism for throwing the driving-shaft of the loom out of action. In the example shown a loose pulley, d on shaft G is thrown in and out of engagement with the shaft G by sliding the movable half A of the clutch A. This portion A of the clutch may also carry a toothed wheel, (1, to engage with and drive a gear, (l on the shaft G. To the block M is also pivoted an elbow-lever, d, which is normally held by aspring, 0 against a stop, f, that is formed on said block, as shown in Fig. 1. To the lever H is pivoted another pawl, R, which enters through a slot or groove in the back part of the block M and is capable of reaching the elbow-piece (1 as hereinafter more fully stated. The lower part of the lever (1, below its pivot a, connects by a rod, with a link, it", that is pivoted tothe lever H. When the loom works properly, the link if will come against the pawlRwhenever the batten pushes the lever 0 completely forward, and will lift said pawl out of reach of the elbow-piece (1.

These are the parts that constitute my new mechanism. Their operation is as follows When the loom is in its normal action, so that the batten in its forward stroke will not affect the position of the lever D, but will bring the lever O to the position shown in Fig. 1, the lever E, in vibrating on its pivot y, will cause the lever D to be raised and lowered but inasmuch as the lever D has its shoulder a under the back bar of the staple t, in which position a spring, i", tends to keep it, the upward stroke of the lever D will be transmitted to the lever L, and will cause said lever L to be swung on its pivot 8, thereby lifting the rod r and swinging the bar J so as to bring its arm 1) against the under side of the pawl j, lifting the same out of the teeth of the ratchetwheel I, and at the same time also push the pawl Z by the arm 0 out of contact with wheel I, so that, as by the same upward movement of the lever E the lever H is also swung up, its pawl j will not affect the position of the ratchet wheel, and will not turn the same at all, nor interfere in any manner with the other mechanism, M and N. \Vhen, on the downward movement of the lever E, the levers D and H come down again, the parts will gradually reach the position shown in Fig. 1 without in any manner having turned the ratchetwheel I. Thus during the normal action of the loom the mechanism which I have de scribed will not interfere therewith. \Vhen, however, the shuttle-thread breaks or becomes exhausted, and the shuttle runs empty or deposits nothing in the shed, thereby causing the batten to be thrown forward farther than ordinarily it would be or ought to be, the result will be that after three or four advance movements of the finished fabric the toe d of the batten will strike the lever D sufficiently to push it into the staple t so far that the shoulder a will no longer be under the rear arm of the staple, and then the lever E, in moving upward, will push the lever D upward without causing it to lift the lever L; hence the lever L will not swing the bar J, and will not lift the pawl j out of the ratchet-wheel, and each upward stroke of the lever H will then cause the pawl j to turn the wheel I one tooth in the direction of the arrow 2, until finally the stop at will be brought against the edge of the block M, and then, as the pawl j continues its action on the ratchet-wheel, the block M will be gradually pushed over in the direction of the arrow 4, Fig. 1, and will thereby push the lever N in the same direction and upwardly, and slowly lift the shipper-bar 0, until finally the notch of said shipper-bar will be clear of the frame of the loom, when the spring or weight on the shipper-bar will cause it to be moved lengthwise, so as to stop the loom.

I do not claim here anything in the manner of stopping the loom by the motion of the shipper-bar, for there have been many inventions already introduced for that p urpose,none of which I claim as mine. My invention has solely for its object to move this shipper-bar in the manner stated,letting it have the effect, which is well known to all persons skilled in the art of using looms, of arresting the driving mechanism. As soon as the shipper-bar has been lifted as described, (and Fig.3 showsit in the position when lifted,) the lever 1? gets into the position shown in Fig. 3, and brings its spring-click x upon the arm 0 of the lever J,'so that when on a subsequent downward motion of the lever E, after the loom is re started, a shoulder, Z on the pawl It seeks to draw the block M back to the position shownin Fig. 1, the said pull, combined with the weight ofthe lever N and block M ,added to the power of the spring y, will cause this click to press on the arm 0 and lift the pawls j and Z out of the ratchet-wheel again, thereupon giving the springa the opportunity of turning the wheel I back to its normal position, or thereabout, so as to relieve the block 'M from contact with the pin or stop m. Fig. 3 shows the stop at still in contact with the block M, and the pawlsj and Z out of the teeth of the ratchetwheel I, and therefore shows the parts in the position when, after having lifted the shipper-bar, the bar J is swung by the click, and just before the spring it begins to make itself felt in turning the wheel I back. Thus the parts are now in position to let the loom be restarted and normally operated again as soon as all the parts have been put in order. If the batten should make single advance movements beyond the normal .limit, and should then resume its proper action, the loom would not be stopped, because if the lever D is lifted but once, say, without swinging the lever L, the pawl j will move the wheel I one tooth only; but the next stroke of the lever D finding it again in its proper position for lifting L, the bar J will be swung, and the pawls j andl thrown out of gear, and the spring a thereby enabled to turn the wheel I back to its normal position.

Having thus shown how the batten will cause the loom to be arrested by means of my attachment in case the shuttle runs emptythat is, deposits no weft in the warp-it remains to. show the operation of my mechanism if the shuttle itself clogs the shed and prevents the batten from swinging as far forward as it would normally. It has already been stated that on the backward motion of the batten the lever 0 drops against the pin 2), and that on the forward motion of the batten the lever O is swung forward into the position shown in Fig. 1. If the batten in its forward motion finds the shuttle to obstruct its path, so that it cannot reach as far forward as it oughtto, the lever C will remain nearer to the pm b, and will therefore allow the pawl It to rest in such a position in the groove or slot of the block M that on the next lifting motion of the lever H this pawl R will strike the elbowpiece d until it crowds it againsta stop, j thatis attached to the block M, whereuponthe continued rising motion of the lever H will cause the pawl R to swing the block M bodily, and with itthe parts Nand P, into the position shown in Fig. 3, and lift the shipper-bar. Thus, even if the lever D works normally, the loom will still be arrested if the lever C does not work normally, and vice versa.

1. The combination of the batten A and its projecting piece (1 with the lever D, levers E H, means for operating the lever E, link h, pawl j, ratchet-wheel I, having stop an, pawl Z, bar J, rod 0*, lever L, staple t, block M, and levers N and P and shipper-bar, substantially as and for the purpose hereinshown and described.

2. The combination of the lever P. springpressed click a: and spring 3 with the lever J, the lever N, block M and ratchet-wheel I, stop m, spring a, pawls j, l, and R, lever H, and means for operating the lever H, substantially as and for the purpose described.

3. The combination of the ratchet-wheel I with the means for turning it, substantially as described, the stop-pin on, block M, lever N, lever I, and the shipper-bar, substantially as and for the purpose specified.

4. The combination of the batten A and lever O with the rod link h", lever H and means for operating theleverH, pawl R, block M, levers N P, and shipper-bar O, substantially as and for the purpose described.

EDUARD HERZIG.

XVitnesses:

GUSTAV SorrNnrrn, WILLY G. E. SCHULTZ.

ICO 

